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Lighthearted vs Undefined - What's the difference?

lighthearted | undefined |

As adjectives the difference between lighthearted and undefined

is that lighthearted is joyful, glad, taking pleasure in being alive not depressed or sad while undefined is lacking a definition or value.

lighthearted

English

Adjective

(en adjective)
  • Joyful, glad, taking pleasure in being alive. Not depressed or sad.
    • The lighthearted young lovers ran over the hills.
  • Enjoyable lack of seriousness, not grave.
    • His lighthearted banjo was appreciated because it relieved the tension in tight situations.

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined